Osamu nodded to Sesshoumaru as he came into the study. "I have word from the teams. The majority of the Diet members who knew about youkai have been eliminated. The thirteen members left will be taken out within the hour. The doppelgangers are in place. We have one civilian casualty, but she'll be taken care of through our police contacts."
"And the Imperial family?"
"All direct lines have been eliminated. What are your orders for the dispossessed members?"
"Hn." Sesshoumaru moved to his desk, deep in thought. "Leave them for now. If we find they know something later, we'll act."
In 1947 the Imperial family lines were trimmed to basically the direct male descendents of the Emperor and their wives and children. Women of the royal line who marry out lose their royal titles.